ONTARIO AGRICULTURAL COLLEGE. 



BULLETIN 141. 



Gas-Producing Bacteria 



AND 



Their Eilect on Milk and its Products. 



By PROF. F. C. HARRISON. 



Ba(!teriological Department. 



PUBLISHED BY THE ONTARIO DEPARTMENT OF AGRICULTURE, 



Toronto, Ont., April, 190.'). 



Printed by L. K. CAMERON, 



Printer to the King's Most Excellent Majesty. 



